TAS5602DCA - 20W Stereo PWM-Input Class-D Power Stage | TI
N.º de pieza: TAS5602DCA ✓ ActivoTAS5602DCA Descripción general
A Class-D audio amplifier is a switching power amplifier that delivers audio output by applying a constant-amplitude PWM carrier to the speaker load, so the transistor output stage conducts only when the PWM signal is active. In the device hierarchy, TAS5602DCA belongs to the amplifier IC family, inside audio amplifiers, inside integrated circuits, inside analog power and signal-chain semiconductors. Unlike a conventional analog input amplifier, this part accepts a PWM signal directly from a digital audio processor or a Class-D modulator, eliminating an analog input stage and its associated noise and distortion.
Key features include 20 W of continuous output power per channel, a wide 10 V to 26 V operating supply range, and support for both single-ended and bridge-tied speaker configurations. Because the part accepts PWM rather than an analog voltage, the noise floor is set entirely by the upstream digital source, which keeps inter-channel noise and distortion very low and makes channel matching essentially perfect. The device supports 2-channel stereo, 4-channel quad, and mono operation modes, giving a single part number flexibility for multiple speaker topologies.
Internally, the TAS5602 architecture combines a half-bridge output stage with integrated feedback control, so the amplifier can be configured with or without a feedback resistor network to suit the target speaker impedance. Because output stage switching is fully synchronous and the modulator runs at a high carrier frequency, the switching losses remain low and the power stage can be mounted on standard two-layer PCB copper without a bulky external heatsink in typical 10 W per channel designs.
Typical applications include consumer and industrial audio: multi-room and networked speakers, sound bars, TV and monitor speaker drivers, Bluetooth and Wi-Fi speaker systems, USB and PC audio docks, and powered speaker systems. The 56-pin HTSSOP package with exposed pad provides a large thermal copper area, which is essential for continuous 20 W per channel operation from a 24 V rail.
When laying out the board, treat the exposed pad as both the thermal path and the main ground return. Use a solid ground pour with minimal inductance between the output drivers and the supply bypass capacitors, and place the input PWM traces away from the switching node to avoid coupling the carrier frequency into the audio path.
This page brings together the manufacturer ordering information, a parameter-by-parameter comparison against related Texas Instruments Class-D power stages, and practical thermal and layout guidance that goes beyond the headline specifications found in the datasheet.
Alternativas directas para TAS5602DCA — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
TAS5613DCA
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TAS5705DCA
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TAS5717DCA
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TAS5626DCA
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TAS5631DCA
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TAS5602DCA Valores máximos y características eléctricas
| Output Power per Channel | 20 W |
| Total Output Power (2 channels) | 40 W |
| Supply Voltage Range | 10 V to 26 V |
| Input Signal Type | PWM (self-modulating digital input) |
| Channel Configuration | Stereo (2 ch), Quad (4 ch) or Mono |
| Speaker Drive Modes | 4 single-ended speakers or 2 bridge-tied speakers |
| Encapsulado | HTSSOP-56 (DCA) with exposed thermal pad |
| Recuento de pines | 56 pins |
| Rango de temperatura de funcionamiento | -40 C to +85 C |
| Tipo de montaje | Surface Mount |
| Amplifier Type | Class-D digital audio power stage |
| Output Topology | Half-bridge switching output stage |
| Feedback | Feedback-resistor option for speaker impedance compensation |
| Datasheet Document Length | 27 pages |
| DigiKey Category | Audio Amplifiers |
Guía de configuración de pines de TAS5602DCA htssop-56 (dca) with exposed thermal pad
Configuración de pines para TAS5602DCA (encapsulado htssop-56 (dca) with exposed thermal pad). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para TAS5602DCA.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
TAS5602DCA es adecuado para 6 aplicacións: Bluetooth and Wi-Fi Powered Speakers, Sound Bars and Flat-Panel TV Speaker Drivers, Multi-Room and Networked Audio Distribution, Industrial and USB Audio Docks, PC and Gaming Audio Headsets, Portable and Battery-Powered Speaker Systems.
Bluetooth and Wi-Fi Powered Speakers
The TAS5602DCA is a natural fit for Bluetooth and Wi-Fi speaker products because the audio SoC in those products usually drives a Class-D modulator, and the TAS5602DCA accepts a PWM input directly. That removes the analog input stage and its associated noise, so the noise floor of the system is set by the digital source instead of the amplifier. With 20 W per channel from a 10 V to 26 V rail, one device covers a compact two-way speaker driven from a boosted single-cell pack or a mains-powered 24 V system. Because the output stage is synchronous and switching, the thermal load is handled by the exposed pad soldered to the PCB ground pour, which keeps the enclosure free of a heatsink and preserves a small form factor. Design the supply bulk capacitance for the switching current and keep the PWM input routing short and away from the switching nodes.
Recomendado
Sound Bars and Flat-Panel TV Speaker Drivers
Sound bars and flat-panel displays need several low-profile speaker drivers driven from a single amplifier board with limited heatsinking area. The TAS5602DCA's 56-pin HTSSOP package with exposed thermal pad fits that mechanical envelope, and its 20 W per channel rating is appropriate for the small 4 ohm to 8 ohm drivers typically used in these products. Driving the part in 4-channel quad mode allows one device to feed the left, right, centre and surround channels with matched amplification, which improves the perceptual image compared with using mismatched amplifiers. Because the amplifier is a digital power stage, channel-to-channel gain and phase matching remain consistent across all four outputs. Route the four PWM input pairs as a tightly matched group, and place the exposed pad over a continuous ground plane section so that heat spreads across the full board area instead of a small island.
Recomendado
Multi-Room and Networked Audio Distribution
In networked and multi-room audio systems, each zone typically needs its own power stage so that volume control and muting are handled per room. The TAS5602DCA works well in that role because the digital architecture keeps the signal path identical in every zone, and per-channel configuration options allow the same silicon to serve a two-channel stereo zone or a four-channel distributed zone. Running the part from a 10 V to 26 V rail lets a central amplifier chassis share one supply design across different zone power levels. Because the modulator runs in the digital domain, there is no analog gain stage to drift with temperature, which supports long service life in installed equipment. Provide local bulk and high-frequency bypass capacitance at every amplifier site, and keep the exposed pad and ground pour continuous to handle sustained listening duty without local temperature rise at the output devices.
Recomendado
Industrial and USB Audio Docks
USB-C audio docks and industrial audio panels deliver headphone and line-level signals that must be amplified into small speakers in a confined enclosure with no room for an external heatsink. The TAS5602DCA suits this environment because the synchronous Class-D output stage is efficient, and the exposed pad of the 56-pin HTSSOP body can be bonded directly to a large ground pour as the heat spreader. At 20 W per channel and a 10 V to 26 V supply range, the part accepts both a 12 V portable bus and a 24 V industrial rail without a separate regulator stage. Its PWM input architecture is convenient when the dock uses a digital USB audio controller, since the controller's modulator output can feed the power stage directly. Watch the boot-up sequence in the digital path, because the amplifier power stage can begin switching before the audio source is stable if the upstream PWM is not gated.
Recomendado
PC and Gaming Audio Headsets
Gaming headsets and compact PC speakers use small stereo drivers in enclosures where weight, cost and acoustic noise all matter. The TAS5602DCA provides 20 W per channel, which is ample for near-field drivers, and its PWM input lets a USB audio controller drive it without a separate analog codec output stage. Because Class-D output stages switch at a high carrier frequency, the residual switching artefacts stay well above the audible band, so the mechanical and acoustic design focuses on driver selection rather than amplifier noise filtering. The exposed thermal pad is particularly valuable in a headset-style product because the ground pour inside the enclosure acts as the heat spreader. Confirm the carrier frequency and inrush behaviour in the manufacturer datasheet, and keep the input PWM trace short and referenced to the same ground region as the output return to avoid audible artefacts at high listening levels.
Recomendado
Portable and Battery-Powered Speaker Systems
Portable speaker systems operate from a boosted battery rail and must balance acoustic output against enclosure volume and thermal limits. The TAS5602DCA's 10 V minimum supply voltage works with a standard single-cell boost converter, while the 26 V maximum leaves headroom for higher boost ratios or 24 V industrial packs. Delivering 20 W per channel from a small package means the layout must be deliberate: bond the exposed pad to a solid, uninterrupted ground region, and place the input and output decoupling close to their pins to contain the switching current loop. The digital PWM input architecture is a further benefit in portable designs, since the amplifier adds no analog noise and consumes less board area than an analog-input equivalent with its surrounding filtering network. Validate the idle behaviour of the upstream modulator so that the amplifier does not switch during standby, which protects battery life and prevents switching noise from the idle output stage.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TAS5602DCA — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | TAS5613DCA | TAS5705DCA | TAS5717DCA | TAS5626DCA | TAS5631DCA |
|---|---|---|---|---|---|---|
| Package | HTSSOP-56 (DCA) with exposed pad | HTSSOP (DCA) family | HTSSOP (DCA) family | HTSSOP (DCA) family | HTSSOP (DCA) family | HTSSOP (DCA) family |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Signal Type | PWM input | Digital Class-D family, PWM input | Digital Class-D family, PWM input | Digital Class-D family, PWM input | Digital Class-D family, PWM input | Digital Class-D family, PWM input |
| Thermal Path | Exposed thermal pad in HTSSOP package | Exposed pad in DCA HTSSOP family | Exposed pad in DCA HTSSOP family | Exposed pad in DCA HTSSOP family | Exposed pad in DCA HTSSOP family | Exposed pad in DCA HTSSOP family |
Diferenciadores clave
- Direct PWM input removes the analog input stage from the signal chain (frente a TPA3100D2RGZR)
- Higher integration in a single-package stereo and quad amplifier (frente a TAS5613DCA)
- Wide supply range suits both portable and industrial rails (frente a TAS5626DCA)
- Wide temperature rating for industrial and automotive-adjacent environments (frente a TAS5705DCA)
Notas de diseño
The exposed pad of the 56-pin HTSSOP DCA package is the primary thermal path and must be soldered to a continuous ground pour, not to a thermal via array alone. Estimated: with a 24 V supply driving 8 ohm loads at 20 W per channel, the output stage dissipates several watts; spread across roughly 50 mm x 60 mm of 2 oz copper the added junction temperature rise stays modest, whereas a small pour can push the junction close to its limit. Confirm the actual junction temperature in your layout with the manufacturer thermal data.
Place the supply bypass and output capacitors directly between the relevant pins and the ground pour, and keep the high-current loop area as small as possible. Because the TAS5602DCA accepts a PWM input, treat the input nets as high-speed digital signals: route them as a matched group over a continuous reference plane, terminate them close to the device, and keep them away from the switching node and output filter inductor region to avoid carrier-frequency coupling into the audio path.
Two mistakes are common in PWM-input Class-D designs. First, assuming that a PWM-input power stage can accept an analog voltage: the TAS5602DCA requires a modulated PWM signal, so an analog source needs a modulator upstream. Second, treating the exposed pad as optional: with 20 W per channel of switching output the pad carries both heat and the main ground return, so a split or fragmented ground plane degrades both thermal performance and audio behaviour. Use the pin-description table in the manufacturer datasheet for the ground and supply assignments.
Decide early whether the design uses the single-ended or bridge-tied configuration, because it changes the LC filter component selection and the speaker wiring. In bridge-tied mode both output lines switch, so the filter design and the return-current path must be planned so the differential voltage across the speaker is clean. Keep the LC filter components close to the output pins and away from analog or microphone input circuitry in the same enclosure, and verify the filter values against the load impedance you intend to use.
Información de cumplimiento
No explicit RoHS, REACH, AEC-Q100, lead-free or halogen-free statements appear in the available distributor listings or the TI product page for the TAS5602DCA. The part is listed as active by the manufacturer. Check the TI material compliance and quality documents for the DCA package before release to production.
